Gregory L. Tom, O.D.
NPI 1124245568ActiveIndividual· Optometrist, Corneal and Contact Management· San Ramon, CA
Optometrist, Corneal and Contact Management (O.D.) in San Ramon, California, trained at University of California - School of Optometry (class of 1994). In 2024 Medicare paid $49,721 for 135 patients, and Part D covered 195 of their prescriptions, 52% of them generic. Lumenis Be Inc was the largest of 4 companies reporting payments in 2025, $10,873 in all, mostly food and beverage.
Overview
| NPI | 1124245568 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 19, 2007 |
| Last updated in NPPES | Aug 24, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist, Corneal and Contact Management Primary | 152WC0802X | 10427T | CA |
| Optometrist, Low Vision Rehabilitation | 152WL0500X | 10427T | CA |
| Optometrist, Vision Therapy | 152WV0400X | 10427T | CA |
| Optometrist, Pediatrics | 152WP0200X | 10427T | CA |
| Optometrist, Sports Vision | 152WS0006X | 10427T | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Optometry (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 135 |
|---|---|
| Services billed | 799 across 13 procedure codes |
| Paid by Medicare | $49,721 |
Part D prescriptions in 2024
| Prescriptions (claims) | 195 · 375 30-day fills |
|---|---|
| Patients | 54 |
| Total drug cost | $9,295 |
| Generic share | 52% of claims |
Education and affiliations
| Medical school | University of California - School of Optometry |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Optometry |
Medical group
- Danville Optometric Eye ClinicDanville, CA · 2 clinicians
Industry payments (Open Payments)
- 2025$10,873 · 18 payments from 4 companies
- 2024$3,578 · 14 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lumenis Be Inc | $10,115 | 5 |
| Johnson & Johnson Vision Care, Inc. | $402.13 | 9 |
| Optos, Inc. | $241.58 | 1 |
| Coopervision Inc. | $113.91 | 3 |
What the 2025 payments were for
- Food and Beverage$10,631 · 17 payments
- Entertainment$241.58 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records